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It all depends on how much coin u want to shell out. The lincoln precision tig and the synchrowaves from miller are pretty even in my opinion. I like millers arc better at real low amps but i like lincons set up better with drawers and storage compartments. If your talking inverters i was told by a lincoln rep himself not to get their invertec because they have been having alot of problems with them. That was like 2 years ago so dont know if they got it worked out. The dynasty line is hard to beat though. Its a nice welder

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Anytime you are looking for a new piece of equipment, check forums for problems with particular units. I recommend Miller inverter units, but they are pricey. Lincoln inverters are supposedly made in Italy and they are having problems with their input voltage selection circuitry. Repair runs about $800. I wouldn't touch these. Everlast cost about 1/2 of the Miller unit, but they seem to be hit and miss on performance. For some they work great, others have problems with them. There are reports of problems with customer support from Everlast as well. Miller customer support is top notch.

The inverter units have a lot of features that large transformer units do not, which is why I recommend an inverter. I will be buying one in the near future myself.

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this is a miller forum so the answers you get will be some what biased however i would go with miller. all my welders have been from miller and i have been very satisfied. I also had two warranty claims and both times i was treated very well. (the second time the cooler was 1 month out of warranty and Miller still covered it)

As for model tig welder, i would go with a syncrowave 200 or 250. proven track record and a great machine. What is your budget and how thick of material are you planning to weld? If you can afford it the Dynasty series of miller tig welders is the best you can get.

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It is hard to beat a used Syncrowave 180 or 200, typically $1000 to $1500. I have owned both, both are good. If you decide to upgrade to a fancier machine down the road, you will be able to sell it for roughly what you paid for it, so the risk is low.

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Im a student welder and looking into buying a tig welder dont know wich brand series to choose from im looking into bettering my skills for work and trying diffrent materials from aluminum to titanium n diffrent filler rods plz input needed

As Spence468 said, it depends on how much you want to spend. I prefer Miller myself, although I do have one Lincoln. Bought it when I was a student to practice for my classes. It was cheap and it still works fine. If your budget allows, I would recommend the Diversion 180. It does AC/DC and is multi-voltage. I had one and it was a good machine. Not heavy duty, but great for learning.

The Synchrowave is a good machine. Used them a lot. But you need to make sure you have the power to run one. You can get some real bargains on a used one, if your power supply can support it.

The Dynasty is the top of the line. But the price makes it a long term investment for the future. I love mine!

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Since you want to weld titanium and aluminum, your looking at the most expensive tig welders out there. Ac/dc with high frequency start and remote amp control. I don't care for the diversion series tig welders. They have an extremely low duty cycle and minimal ac adjustments and will not stick weld as all tig welders should. The inverters like the dynasty series machines are very costly. If you have the power available, I prefer the longevity of the transformer welders like the syncrowave and precision tig machines.
A dc only tig will cost far less but will not allow you to weld aluminum.

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Before I chose a welder I called a couple repair shops to see what was coming through. They said Miller and Lincoln were in the shop the least with Miller being the most rare. Knowing that saved me a lot of time looking at different brands.